The relationship between high-temperature steam oxidation and hydrogen dissolution in high-chromium ferritic steels

K. Nagai, M. Nakai, T. Kunieda, Y. Murata, M. Morinaga, S. Matsuda, M. Kanno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The high-temperature oxidation in air and steam at 923 K was examined with pure iron, Fe-10Cr and Fe-10Cr-0.08C (0∼0.03)S steels. The amount of hydrogen dissolved into samples during exposure to steam was measured with thermal desorption spectroscopy (TDS). It was found that the amount of dissolved hydrogen was related closely to the steam oxidation resistance of the steels. In case of pure iron, the thickness of the oxide scale formed in steam at 923 K for 360 ks was comparable to that of the scale formed in air. On the other hand, in case of the Fe-Cr binary alloy and the ternary ferritic steel, the oxide scale was much thicker in steam than in air. It was found that the amount of the dissolved hydrogen was much larger in both the binary alloy and the ternary ferritic steel than in pure iron, and then it leads to the more accelerated oxidation rate in the ternary steels in steam.

Original languageEnglish
Title of host publicationHigh-Temperature Oxidation and Corrosion 2005 - Proceedings of the International Symposium on High-Temperature Oxidation and Corrosion 2005
PublisherTrans Tech Publications Ltd
Pages197-204
Number of pages8
ISBN (Print)9780878494095
DOIs
Publication statusPublished - 2006 Jan 1
Externally publishedYes
EventInternational Symposium on High-Temperature Oxidation and Corrosion, ISHOC-05 - Nara, Japan
Duration: 2005 Nov 302005 Dec 2

Publication series

NameMaterials Science Forum
Volume522-523
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

OtherInternational Symposium on High-Temperature Oxidation and Corrosion, ISHOC-05
CountryJapan
CityNara
Period05/11/3005/12/2

Keywords

  • High-chromium ferritic steel
  • Hydrogen dissolution
  • Pure iron
  • Steam oxidation
  • Sulfur

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Nagai, K., Nakai, M., Kunieda, T., Murata, Y., Morinaga, M., Matsuda, S., & Kanno, M. (2006). The relationship between high-temperature steam oxidation and hydrogen dissolution in high-chromium ferritic steels. In High-Temperature Oxidation and Corrosion 2005 - Proceedings of the International Symposium on High-Temperature Oxidation and Corrosion 2005 (pp. 197-204). (Materials Science Forum; Vol. 522-523). Trans Tech Publications Ltd. https://doi.org/10.4028/0-87849-409-x.197